Collapse All/Expand All not functioning as expected

Tools - Nov 2, 2016

This is only happening in the Editor Preferences/Project Settings. Hitting the Collapse All option removes everything and leaves the window blank where all of the settings were. Expand all brings th ...

SetGamePaused documentation does not match functionality

UE - Gameplay - Jul 6, 2016

SetGamePaused documentation states that it returns "whether the game was successfully paused/unpaused." This seems to imply that a return value of true means either the game was paused and was unpa ...

r.ScreenPercentage.Editor does not function

UE - Graphics Features - Jun 2, 2016

Setting r.ScreenPercentage.Editor does not affect the upsampling/downsampling of the viewport in the editor. Regression: YES - the console command correctly adjusted the screen precentage in 4.11.2 ...

Evaluate ClampedPow material function

UE - Graphics Features - Mar 16, 2017

ClampedPow seems to have been added as a way to tackle common compile warnings and edge cases (particularly NaNs), but the code shouldn't be calling both an abs() then a max(). This causes negative ...

UUserWidget::SetPositionInViewport does not function as intended

UE - Editor - UI Systems - Oct 15, 2018

The Set Position in Viewport node does affect UserWidgets position. It keeps it 4.19.2 (CL - 4033788), 4.20.3 (CL - 4369336), 4.21  (CL - 4465720), 4.22 (CL - 44654877) ...

USkeletalMesh::SetSkeleton function is not a BlueprintSetter

UE - Editor - Open File Formats - Asset Migration - Oct 28, 2021

I have a fix ready for this in cl: 17967661 ...

SetOneWayInteraction functionality has no effect on the simulation

UE - Runtime - Simulation - Nov 11, 2022

Calling SetOneWayInteraction on a BodyInstance has no effect within the physics engine. The state of the flag is passed in to Chaos but nothing actually uses the value once it is there. It is expe ...

Visibility of World Outliner doesn't affect skylight

UE - Graphics Features - Nov 27, 2018

Visibility of World Outliner doesn't affect skylight. But it affects other kinds of lights like Point Light, Directional Light. I found that USkyLightComponent::CreateRenderState_Concurrent() doesn ...

Incorrect shadow on movable objects with ES3.1

UE - Platform - Mobile - Jan 10, 2020

While in ES 3.1 - lighting on movable meshes from static directional light appears to be rotated 90 degrees. The direction of light on movable mesh, both static mesh and skeletal mesh, doesn't match ...

Duplicated bp components incorrectly double their transforms when created

UE - Gameplay - Blueprint - Jan 4, 2017

Add a light to a blueprint Move it away from the origin Right click on the component and duplicate it Notice that the new light is now a child of the previous light and that its transform is now in ...